Home / 18,300.47-25,254.66-9,916.97

Finding the Fourth Proportional to 18,300.47, 25,254.66 and 9,916.97

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Solution

The fourth proportional to 18,300.47, 25,254.66 and 9,916.97 is: 13,685.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,300.47 : 25,254.66 = 9,916.97 : x
  2. Step 2: Convert to fraction form
    18,300.47/25,254.66 = 9,916.97/x
  3. Step 3: Cross multiply
    18,300.47x = 25,254.66 × 9,916.97
  4. Step 4: Simplify right side
    18,300.47x = 250,449,579.31
  5. Step 5: Solve for x
    x = 250,449,579.31/18,300.47
  6. Step 6: Final answer
    x = 13,685.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.